Apparatus for emptying revolving barrels or drums.



PATENTED OCT. 10, 1905.

A. WNsoH. APPARATUS PoR BMPTYING RBVOLVING BARRBLS 0R DRUMS.

APPLICATION FILED APB. 27,1905.

fig/gine@ UNITED STATES FFIGE.

APPARATUS FOR ElVlPTYlNG REVOLVING BARRELS OR DRUMS.

Specification of Letters Patent.

Patented Oct. 10, 1905.

Application filed April 27I 1905. Serial No. 257,579.

'o r/,/ who/1t it may concern.-

Beit known that l, ALors iVi'NscH, tanning chemist, residing at e6Baumg'artenstrasse, Bad KreuZnach-on-the-Nahe, Germany, have inventedcertain new and useful Improvements in Apparatus t'or Emptying RevolvingBarrels or Drums, of which the following is a speciiication.

The present invention relates to means for emptying' revolving barrelsor drums through a hollow axis thereof.

The appliances heretofore proposed for this purpose, which consistmainly ot' a scoopingpipe passing through the hollow axis and closed bya cock, are subject to disadvantages. According to the present inventionin place ot' such scooping up and emptying pipes passing through thehollow axis ot' the drum there are provided special scooping pockets orcells that revolve with the drum and that discharge into a stationaryfunnel which conveys the liquid through the hollow axis to the outside.By this means it is insured that during the discontinuance of theemptying operation or during the standing still of the drum no liquidshall remain in the emptying-channel so as to forni deposits therein atpoints which cannot readily be cleansed. ln particular, however, thisfunnel is arranged adjustable in such manner that it can be turned intosuch a position that it no longer receives the liquid, but causes it totlow back into the drum. On the rear side a second funnel can beprovided which receives the liquid, leads it to one side, and suppliesit to the interior ot' the drum again at the level of its axis.

In the use ot' revolving barrels or drums in connection with thetreatment ot' leather or other materials different liquids `are passedinto and out of the barrels, and it is essential that one liquid must bealways drawn otl` entirely before the next liquid is introduced.

I will proceed to describe the said invention with reference to theaccompanying' drawings, in which- Figure 1 shows a vertical section online A A, Fig. 2, of a revolving barrel or drum having my inventionapplied thereto. Fig. 2

shows a section on line B B, Fig'. 1; Fig. 3, a section on line C C,Fig. 1; and Fig. 4, a part perspective view ot' the scooping-pockets.

The revolving barrel or drum l, carried by tubular journals 2 and 3, isdivided in the known manner by means of a partition 4 with pertorations5 into an operating-compartment l l i and a narrow scooping ordischarging compartment. The supply of liquid to the drum is effectedfrom the supply-funnel 6, through the pipe 8, after the liquid has beenlheated, it' necessary, by the steam-pipe 7. The opening 9, closed by acover, serves for the introduction of the materials to be operateduponsuch as hides, leather, woven fabrics, and the like.

At the periphery ot the drum there are provided special tlatcollecting-chambers 10, separated by perforated walls 11 from theworking' space, and they arc connected by nozzles or channels 12,passing through the partition 4, with the scooping-pockets, into whichthey lead theliquid. In addition a communication is established betweenthe scooping-compartment and the working compartment by means ot' theperforations 5.

ln the scooping or discharging compartment scooping pockets or cells areformed between the outer wall 13 of the drum and the wall 11, parallelthereto, and formed with openings by means of thc radially-arrangedblades 15 and the ring' 16, so that each cell or pocket is formed by aportion of the wall 13, the opposite part ot' the wall 14, a part ot'the ring 16, and a blade 15. The pockets thus formed raise up the liquidlike abucket-wheel and allow it to t'all through opening17 of the ring'16 into the funnel 2O when this is in the position shown at Fig. 1.

Fig. 4 shows how two contiguous pockets are supplied directly by thenozzle 12 of a collecting-chamber 10 in addition to the scooping up ot'the liquid Vfrom the bottom ot' the narrow compartment. From the funnel2O the liquid flows oil through the pipe 22, provided with a cock 2l.The cock 21 is always open except during the turning' of the pipe 22.lt' the pipe 22 is turned through one hundred and eighty degrees, thenthe return-flow funnel 23 will be in the upward-directed position, andthe liquid discharged from the pockets will be led back into theoperating-chamber through the pipe 26, whereby a rapid circulation ot'the liquid is maintained in such chamber. At the same time the cock 21can be lett open, so that during the simultaneous supply of liquidthrough the pipe 8 the air can readily escape from the interior ot' thedrum. The introduction oi the combined tunnels 2O and 23 can be readilyeliected through the charging-opening 9 when mounting' the apparatus.

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'Ihe action of the apparatus is as follows: On the rotation of the drumthe chambers 10 become filled with liquid when passing through theliquid in the bottom of the drum and raise the same above the surface ofsuch liquid. The lateral discharge from the chambers then commencesthrough the nozzles 12 into the pockets 15, As soon as these pockets arefilled and their discharge through the opening 17 has not yet commencedthe liquid iiowing into the pockets will run off laterally through theopenings in the wall 14C and will fall into the lower part of thescooping-chamber. The flowing of the liquid from the chambers 10 intothe pockets 15 will, however, continue after the discharge from thepockets 15 has commenced and until the chambers 10 when arrived at theirhighest position will have discharged their entire contents, which Willthus be led through the pockets 15 into the funnel 20 or into the funnel23. If the funnel 20 is uppermost, the discharge will take place throughpipe 22. If, on the other hand, funnel 28 is uppermost, the liquid willbe led back into the operating-compartment. By keeping open the cock 21during the latter operation the escape of air during the filling in ofliquid through the pipe 8 is facilitated.

It will be evident that the construction can be variously modified. Inparticular the pockets can be so arranged symmetrically in pairs thatthey will operate in whatever direction the drum is turned. l

. Having now particularly described the nature of my said invention andthe best means I know of carrying the same into practical effect, Iclaim--- 1. In apparatus for emptying rotating barrels or drums, adischarging-tunnel having a pipe leading through the tubular journal ofthe drum and adapted to be turned from a position in which it receivesliquid and discharges it through the said pipe, into a position in whichit does not receive the liquid, and means for turning the funnel from apoint outside of the drum, substantially as described.

2. In apparatus for emptying rotating barrels or drums the combinationof two rotatable tunnels one of which has a discharge-pipe leading tothe outside of the drum and the other has a pipe leading to the interiorof the drum substantially as described.

3. In apparatus for emptying rotating barrels or drums the combinationof collectingchambers in the operating compartment scooping-pockets inthe discharging-compartment and channels leading directly from saidcollecting-chambers to said scooping-pockets, substantially asdescribed.

4:. In apparatus for emptying rotating barrels or drums, the combinationof collectingchambers in the operating compartment, scooping-pockets inthe discharging-compartment channels leading directly from the saidchambers to the scooping-pockets and a funnel adapted to receive liquidfrom the scooping-pockets and to discharge the same outside the drum,substantially as described.

5. In apparatus for emptying rotating barrels or drums the combinationof collectingchambers in the operating compartment, scooping-pockets inthe discharging-compartment, channels leading from thecollectingchambers to the scooping-pockets and two rotatable tunnels,one of which is adapted to receive liquid from the scooping-pockets andto discharge the same outside of the drum, While the other is adapted toreceive liquid from the scooping-pockets and to discharge the same intothe operating-compartment of the drum, substantially as described.

In testimony that I claim the foregoing as my invention I have signed myname, in presence of two witnesses, this 17 th day of April, 1905.

ALoIs wNscH. I/Vitnesses:

RICHARD WIR'IH, FRIEDRICH QUEHL.

